Ijeouck



(No Model.)

0. J. HASBROUGK.

PAPER BOX.

Fig-1- lNVENTOR:

TNESSES:

Attorney.

UNITED STATES PATENT OFFICE.

CORNELIUS J. HASBROUGK, OF NEW YORK, N. Y., ASSIGNOR TO SARAH P.HASBROUOK, OF SAME PLACE.

BOX.

SPECIFICATION forming part of Letters Patent No. 391,743, dated October23, 1888.

Application filed February 15, 1888. Serial No. 264,128. (No model.)

To all whom it may concern..-

Be it known that I, CORNELIUS J. Has imoUoK, a citizen of the UnitedStates, residing in the city, county, and State of New York, haveinvented certain Improvements in Paper Eoxcs, of which the following isa specifica- My invention relates to folding paper boxes-that is to say,boxes which are constructed with integral fastening. devices and cut tothe proper form from a single sheet, with creases for folding. When itis desired to use the box, it is folded up into shape and secured by thereciprocal fastening devices at the corners.

The object of my invention is to produce a box of this character whichshall have a bet ter and neater corner finish than those in common use,and which shall be simple in construction and easily and convenientlyset up or folded into shape for use.

My invention will be hereinafter fully described, and its novel featurescarefully defined in the claims.

In the drawings, which serve to illustrate my invention, Figure l is aplan view of a box illustrating my invention, the upper half of the viewshowing one end of the box in its flat state and the lower half showingthe other end in its folded state. As one half of the box is only arepetition of the other ha1f,this view serves to illustrate the entirebox in its two forms, flat and folded. Fig. 2 is a fragmentaryperspective view of one corner of the box, designed to illustrate thefastening device.

It will be understood that the box is cut from a sheet of stiff paper,all in one piece, including the fastenings. Usually it will be cut witha special cutter or die employed in the manufacture of this class ofboxes. In the drawings the creases made in the paper along the lines ofthe bends or folds are indicated by dotted lines, and the slits wherethe paper is cut through, but no material removed, are indicated by afull black line.

a represents the bottom of the box; b b, the sides, and c c the endsthereof.

. As the box is provided with like fastenings at each corner to connectthe side 6 with the end 0,1 will only describe one set of fastenings.

On the box side I) is left a flap, b*, which is separated from the end 0along the line m, and creased for folding along the dotted line 3 Inthis flap is a slit, b, along the line of itsjunction with the side b,and a branch slit, 1), from the slit 1). On the box end is left a hook,9. The crease z for folding the hook isat its junc tion with the end 0.

I11 folding and setting up the box the side and end of the box arefolded up, and the flap b and hook 0 also folded along the lines at and2, respectively. The hook 0* is passed through the slit 2) at thejunction of the flap with the side 5 until the notch c at the upper sideof the hook, where it joins the end 0, is properly engaged and forms thelock. The hook is sprung in inserting it in a well-known way, and theengagement of the said notch with the end margin of the slit b forms thelock.

It will be seen that my box has no extraneous fastening devices; thatthe flap and hook are cut from the waste material at the corner of thebox-blank, and that both the end flap and the hook fold on the inside ofthe box and thus give the box a neat appearance externally at thecorners.

The box is stiffened and braced at the eorners by the bearing of thelower edge of the flap b on the bottom of the box, as seen at e in Fig.2, and by the angular tongues g 9 formed by the slits b b. Thesetongues, one or both, are pushed in by the insertion of the hook throughthe narrow slit 1), and form angular braces which tend to stiffen andbrace the box.

Of course the box may have any proportions, and either of the parts I)or 0 may be considered its ends. I have designated the shorter sides asthe ends. The branch slit b may be omitted; but its use will make thecor ner much more rigid, and it also enables the hook a to be insertedthe more easily when the slit b is formed without removing any of thematerial.

In boxes with high sides two or more hooks and their corresponding slitsb may be employed. The cover of the box may be made in the same manneras the box, except that it will be a little larger.

I am aware, of course, that a lock somewhat similar to that I employ hasbeen used in the flat side of a paper box, and that the slit in the sideof such a box has had abranch slit to enable the hook to be more readilyentered; but this construction does not effect the same result as mine,which is to stiffen the corner of the box and brace it. I am also awarethat in some forms of knockdown boxes slits have been formed in thecreases to receive tongues or flaps,'and this particular feature I donot claim, broadly. In my box the interlocking is effected at thecorners, and the corners braced thereby against both internal andexternal pressure.

Having thus described by invention, I claim- 1. As an improved articleof nianulacture, a paper box having on its side an integral flap, b anda slit, I), at the junction of said side and flap, and having on its enda h0ok,c*, to engage said slit 2) and form a lock, substantiall y as setforth.

2. As an improved article of manufacture,

a paper box having on its side an integral flap, b a narrow slit,b, atthejunction of said side and flap, and a branch slit, 1), forming twoangular tongues,gg, in the flap,and having on its end a hook,c to engageslit 1), whereby, when the hook is pushed through the narrow slit 2),the tongue or tongues g are made to form a brace, as shown.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

CORNELIUS J. I-IASBROUGK.

\Vitnesses:

HENRY OoNNn'rT, J. D. GAPLINGER.

